This coal mine was a large and important industrial site in Essen in the past, but now it has become one of the most famous monuments in Essen, Germany, where it has been included in the UNESCO World Heritage List since December 14, 2001, and back to the history of this mine It was established in 1847, and it was one of the largest coal plants in Europe as a whole, and it was and still is a unique architectural masterpiece in Germany. It is based on the idea of focusing on form and theory in construction.